MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
6th Edition
ISBN: 9781119256830
Author: Amos Gilat
Publisher: John Wiley & Sons Inc
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Question
Compute a 90% confidence interval for the proportion of American adults who mostly drink diet soda. Round to three decimal places.
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Transcribed Image Text:Compute a 90% confidence interval for the proportion of American adults who mostly drink diet soda. Round to three decimal places.
In 2013, Gallup surveyed a nationally representative sample of 2027 adults about their soda consumption. The survey showed that 485 mostly drank diet soda.
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Transcribed Image Text:In 2013, Gallup surveyed a nationally representative sample of 2027 adults about their soda consumption. The survey showed that 485 mostly drank diet soda.
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Step 2: To find sample proportion and critical value
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Step 3: To find 95% confidence interval of population proportion P
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